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Finding the Fourth Proportional to 538,553.40, 807,850.60 and 201,558.56

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Solution

The fourth proportional to 538,553.40, 807,850.60 and 201,558.56 is: 302,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,553.40 : 807,850.60 = 201,558.56 : x
  2. Step 2: Convert to fraction form
    538,553.40/807,850.60 = 201,558.56/x
  3. Step 3: Cross multiply
    538,553.40x = 807,850.60 × 201,558.56
  4. Step 4: Simplify right side
    538,553.40x = 162,829,203,631.14
  5. Step 5: Solve for x
    x = 162,829,203,631.14/538,553.40
  6. Step 6: Final answer
    x = 302,345.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.